404 VENTS. Industrial and commercial ventilation | 01-2019

AIR HANDLING UNITS WITH HEAT RECOVERYAIR HANDLING UNITS WITH HEAT RECOVERY

DescriptionThe air handling units are the fully featured ventila-tion units with heat recovery for air filtration, fresh air supply and stale air extract. The extract air heat is used for warming up of the supply air stream in the high-efficient plate heat exchanger. The units offer energy-efficient ventilation for cottages and flats and are compatible with round Ø 125 mm air ducts.

Casing The casing is made of 15-26 mm thick expanded poly-propylene (EPP) sheets, possessing high heat- and sound-insulating properties.

FilterSupply and extract air flows are purified through G4 panel filters. For extra supply air filtration a F8 filter is available as a specially ordered accessory.

FansHigh-efficient electronically commutated motors with external motor and impeller with backward curved blades. Such motors are the most state-of-the-art energy saving solution. EC motors are fea-tured with high performance and total speed con-trollable range. High efficiency reaching 90 % is the premium advantage of the electronically commutat-ed motors.

Heat exchanger The VUT 270 V5(B) EC units are equipped with a counter- flow polystyrene heat exchanger. In the cold season the extract air heat is transferred to the intake air stream which reduces ventilation-gener-ated heat losses.This can lead to formation of condensate that is collect-ed in a special drain pan and discharged into the sew-age system. In the warm season the outside air heat is transferred to the exhaust air stream. This allows for a considerable reduction of the supply air temperature which, in its turn, reduces the air con-ditioning load.

The VUE 270 V5(B) EC units are equipped with a coun-ter-flow heat exchanger with an enthalpy at the core. In the cold season the extract air heat and moisture are transferred to the supply air stream through the enthalpy. Heat recovery minimises heat losses from ventilation. In the warm season the outdoor air heat and mois-ture are transferred to the exhaust air stream through the enthalpy. This enables considerable reduction of the supply air temperature and humidity which, in its turn, reduces the air conditioning load.

BypassThe VUT/VUE 270 V5B EC units are equipped with a bypass for summer ventilation (cooling of the prem-ise with a cool outside air).

AutomationThe VUT/VUE 270 V5B EC A21 units are equipped with integrated control system. The A21 controller allows integrating the unit into the Smart Home sys-tem or BMS (Building Management Systems). Remote control panel is not included in the delivery set and is available as specially ordered accessory. The unit is controlled via Wi-Fi by means of the VENTS AHU mobile application that must be downloaded.

The VUT/VUE 270 V5B EC A14 units are equipped with integrated control system and wall-mounted sen-sor control panel A14 with LED indication. The VUT/VUE 270 V5B EC A2 units are equipped with R-1/010 speed controller.

Freeze protectionFor VUT/VUE 270 V5B EC A14, VUT/VUE 270 V5 EC A2 the freeze protection is realized by means of shutdown the supply fan. For VUT/VUE 270 V5B EC A21 the freeze protection is realized by means of turning the preheater on.

Series VENTS

VUT/VUE 270 V5(B) EC

Heat recovery air handling units in sound- and heat-insulated casings.

Air flow up to 300 m3/h.Heat recovery efficiency up to 98 %

Designation key

Series Rated air flow [m3/h] Installation type Casing design Bypass Motor type Control

VUT: ventilation with heat recovery

VUE: ventilation with energy recovery

270 V: vertical5: expanded

polypropylene (EPP)

_: no bypassB: integrated

bypass

EC: synchronous electronically commutated

motor

A2A14 A21

motorBUILDING MANAGEMENT SYSTEMS

405

WWW.VENTILATION-SYSTEM.COM

VENTS. Industrial and commercial ventilation | 01-2019

WWW.VENTILATION-SYSTEM.COM

VENT

S VU

T/VU

E 270

V5

(B) E

C

AIR

HAND

LING

UNIT

S WIT

H HE

AT R

ECOV

ERY

WWW.VENTILATION-SYSTEM.COM

ModelDimensions [mm]

Ø D B H L

VUT/VUE 270 V5(B) EC 125 590 893 316

Overall dimensions

D

H

Functions A21 A14 A2

External wired control panel

option (A22) A14 speed controllerR-1/010

Wired remote LCD control panel

option (А25)

- -

External wireless control panel

option (A22 Wi-Fi)

- -

BMSRS-485WI-FI

EthernetMODBUS (RTU, TCP)

- -

Service Vents Cloud Server + - -Wi-Fi control via mobile application + - -Speed selection + + +

Filter replacement indicationaccording to filter timer according to filter timer -according to pressure

switch of filter clogging - -

Alarm indication full alarm description in the mobile application alarm LED indication -

Week scheduled operation + - -

Bypass auto - -manual manual -Timer + - -Boost mode + - -Fireplace mode + - -

Freeze protection cyclic shutdown of

supply fan cyclic shutdown of

supply fan cyclic shutdown of

supply fan preheating (option) - -

Reheater connection option - -Cooler connection option - -Control of minimum supply air temperature + - -Humidity control option option -CO2 control option option -VOC control option - -PM2.5 control option - -Fire detector option option -*Option. The function is available in case of mounting a respective accessory.

Control and automation

Installation The units are designed for wall and floor mounting. The access for unit and filter maintenance is available on the right and left side.

Spigots

Cable slots

Extract fan with EC-motor

Control unit

G4 extract filter

G4 supply filter

F8 supply filter (Option)

Heat exchanger

Supply fan with EC-motor

Drain pan

Bypass

Intake air

Supply air

Exhaust air

Extract air

Unit design

406 VENTS. Industrial and commercial ventilation | 01-2019

AIR HANDLING UNITS WITH HEAT RECOVERY

Technical data

VUT 270 V5(B) EC VUE 270 V5(B) EC

Voltage 50 (60) Hz [V] 1~230

Maximum power [W] 162

Maximum current [A] 1.2

Maximum air flow [m3/h] 300

RPM [min-1] 3200

Sound pressure level at 3 m distance [dBA] 34

Transported air temperature [°C] -25…+40

Casing mater expanded polypropylene (EPP)

Insulation EPP 15…26 mm

Extract filter G4

Supply filter G4 (optional F8)

Connected air duct diameter [mm] Ø125

Weight [kg] 13 13.5

Recovery efficiency [%] 87 up to 98 72 up to 94

Heat exchanger type counter-flow

Heat exchanger material polystyrene enthalpy

SEC class for A14, A21 A+ A

SEC class for A2 B B

Accessories for air handling units

Mod

el

G4

pane

l filte

r

F8 p

anel

filte

r

LCD

con

trol

pan

el

Cont

rol p

anel

Wi-F

i con

trol

labl

e co

ntro

l pa

nel

Inte

rnal

hum

idity

sen

sor

CO2 s

enso

r with

indi

catio

n

CO2 s

enso

r

Hum

idity

sen

sor

VOC

sens

or (0

-10

V)

CO2

sens

or (0

-10

V)

Hum

idity

sen

sor (

0-10

V)

Rehe

ater

Preh

eate

r

Syph

on k

it

Air

dam

per

Elec

tric

act

uato

r

VUT 270 V5(B) EC A21

SF 264x182x18

G4

SF 264x182x18

F8

A25 A22 A22 Wi-FiHV2 CO2-1 CO2-2 HR-S

DPWQ 30600

DPWQ 40200

DPWC 11200

NKD 125

NKP 125

SH-32

KRV 125 LF230

VUE 270 V5(B) EC A21 -

VUT 270 V5(B) EC A14 - - - - - - - - SH-32

VUE 270 V5(B) EC A14 - - - - - - - - -

VUT 270 V5 EC A2 - - - - - - - - - - - - SH-32 - -

VUE 270 V5 EC A2 - - - - - - - - - - - - - - -

407

WWW.VENTILATION-SYSTEM.COM

VENTS. Industrial and commercial ventilation | 01-2019

VENT

S VU

T/VU

E 270

V5

(B) E

C

AIR

HAND

LING

UNIT

S WIT

H HE

AT R

ECOV

ERY

0 10 20 30 40 50 60 70 80 90

0

100

200

300

400

500

600

700

0 50 100 150 200 250 300 350

VUT/VUE 270 V5(B) EC0.6 W/l/s0.8 W/l/s1.0 W/l/s1.2 W/l/s1.4 W/l/s1.6 W/l/s1.8 W/l/s2.0 W/l/s

0 10 20 30 40 50 60 70 80 90

80

85

90

95

100

0 50 100 150 200 250 300 350

0 10 20 30 40 50 60 70 80 90

70

75

80

85

90

95

100

0 50 100 150 200 250 300 350

VUE 270 V5(B) EC

VUT 270 V5(B) EC

VENTS VUT/VUE 270 V5(B) EC

Stat

ic p

ress

ure

ΔP

[Pa]

Air flow [l/s]

Air flow [l/s]

Air flow [l/s]

Reco

very

effi

cien

cy [%

]Re

cove

ry

effici

ency

[%]

Air flow [m3/h]

Air flow [m3/h]

Air flow [m3/h]

PointPower, W Sound pressure level at 3 m (1 m) distance [dBA]

VUT/VUE 270 V5(B) EC VUT/VUE 270 V5(B) EC

1 153 34 (44)

2 150 34 (44)

3 142 33 (43)

4 62 30 (40)

5 60 29 (39)

6 59 28 (38)

7 17 27 (37)

8 17 23 (33)

9 16 23 (33)

Exhaust air spigot configu-ration Air flow [l/s]

Specific fan power

[W/l/s]

Recovery efficiency

[%]Kitchen + 1 additional wet

room 21 0,73 85

Kitchen + 2 additional wet rooms 29 0,86 84

Kitchen + 3 additional wet rooms 37 1,08 82

Kitchen + 4 additional wet rooms 45 1.39 81

A-weighted sound power levelGen. Octave frequency band, Hz LpA, 3 m

dBALpA, 1 m

dBAdBA 63 125 250 500 1000 2000 4000 8000

LwA to supply inlet dBA 82 65 63 65 80 74 74 68 64

LwA to supply outlet dBA 66 60 56 55 63 58 49 40 33

LwA to exhaust inlet dBA 85 64 67 71 81 77 79 75 67

LwA to exhaust outlet dBA 71 51 64 62 68 60 60 50 42

LwA environment dBA 55 37 45 44 53 43 43 40 38 34 44

Calculation of air temperature at heat exchanger outlet:

t = toutd + khr * (textr - toutd)/100,

where

toutd is outdoor air temperature [°C] textr is extract air temperature [°C] khr is heat exchanger efficiency (according to the diagram) [%]

408 VENTS. Industrial and commercial ventilation | 01-2019

AIR HANDLING UNITS WITH HEAT RECOVERY

Application options

Ventilation hood Isovent 150 insulated air ductCeiling connector with a disk valve

Air handling unitFlexiVent air duct CollectorFloor connector with a grille